VLADIMIR SOUS

Senior Software / Systems Engineer

TypeScript · Frontend / Full-stack Architecture · Real-time & AI Systems

Brno, Czech Republic
+420 775 335 001
v.sous84@gmail.com
linkedin.com/in/vladimir-sous
vsous.cz

Senior Software / Systems Engineer and independent contractor focused on TypeScript, frontend/full-stack development, real-time applications and AI workflows.

PROFILE

I can help you take a feature or a larger part of a product from the initial problem through deployment — from user interviews and UX design through user flows, components and implementation to testing and further development. For more than 10 years, I have worked on production web, enterprise and industrial applications where the technical design must be connected to how the solution will actually be used.

I focus on carefully completing details, consistent application behaviour and validating the entire flow, not just the code itself. I can lead frontend development, modernise large applications, work with real-time data, monorepos, CI/CD and AI workflows, while maintaining a consistent UX/UI design across the entire product.

Thanks to my previous experience designing utility networks and building-services systems, I approach development from a technical and practical perspective — I care not only whether a solution works, but also whether it is properly designed, tested, maintainable and usable in real-world operations.

CORE EXPERTISE

Solving complex problems: I help identify where the real problem lies, what is unnecessarily complex and what may start slowing future development. I break complex assignments into smaller parts and look for solutions that are simpler, more stable and easier to maintain.
Reliability and security: Together, we will design the application so that a failure in one part does not take everything else down. Secure software starts with good design: appropriate authentication and authorisation, type and input validation, encryption of sensitive data, and safe handling of forms and service-to-service communication.
Performance and real-time responsiveness: When an application processes data in real time, it must respond immediately even under heavy load. A production machine can generate thousands of events in a single second, and a small delay can stop production. These are the situations that show whether a solution is designed well.
Clear direction and rules: A clear direction and explicit rules from the beginning are an essential part of a successful project. Under pressure, rules are not a burden but a support: they help a team decide faster and maintain quality. Tests and automated checks make sure those rules continue to hold when there is no time to do everything manually.
Human in the loop: AI can accelerate work significantly, but responsibility for important decisions must remain with people. I design workflows in which AI prepares inputs and suggestions, while a person verifies, completes or stops the result at critical points before it affects pricing, customers or operations.
Grounded in reality: Most of my career has been spent building things with a direct impact on real operations — from utility networks and production machines to software. In construction, a design error can cost millions; software follows the same principle. I therefore consider context and consequences before a small mistake becomes a major problem.

LANGUAGES

Czech — native speaker
English — C1, daily professional communication in technical and international environments

COLLABORATION

I work as an independent contractor / self-employed professional and am looking for long-term B2B engagements, ideally remote with in-person meetings as needed. I do not consider this a fixed condition, though — the form, scope and mode of cooperation can always be agreed according to the project and situation.

PROFESSIONAL EXPERIENCE — SOFTWARE

NEXIS — AI orchestration for technical workflows

2025 - present

Technical enquiries and source materials arrive across different formats and systems; manual processing makes completeness checks, source traceability and safe hand-off to subsequent steps difficult.
I am designing NEXIS as a governed agentic system: workflow, web-tool and data-layer architecture with explicit inputs and outputs, validation points, traceable sources, explicit uncertainty and human-in-the-loop control.
The result is one controlled flow from intake to a validated working output that a human can review, correct and approve before downstream pricing or customer communication.

Stack: TypeScript, React, Next.js, Node.js, Fastify, PostgreSQL, Prisma ORM, pnpm monorepo, GitHub Actions, GitHub Packages, Vercel, Google Cloud, Docker, Tailscale/Aperture

Senior Frontend Developer | Vivantis a.s.

2024 - 2025

I took ownership of modernising a large legacy e-commerce frontend where shared code needed to be consolidated, fragmentation reduced and long-term maintenance simplified.
I introduced TypeScript, separate Git submodules and a monorepo approach for managing shared code, while consolidating the frontend server, API clients, logging, dependencies and shared packages.
I implemented a Google Tag Manager management layer with typed TypeScript interfaces for individual tracking events, giving analytics events a consistent and verifiable contract.
The result was a more consistent frontend architecture, clearer dependencies and safer handling of shared code and analytics events.

Stack: Vue.js, TypeScript, Vite, TailwindCSS, Node.js, Google Tag Manager, Git submodules, monorepo

Team Leader / Senior Frontend Engineer / Lead UX/UI | Kinali s.r.o. - Mycronic (SWE)

2021 - 2023

Live demo: YouTube

Mycronic industrial pick-and-place machines processing approximately 30 components per second needed a touchscreen interface able to continuously present machine state, production batches, materials, alarms and production progress.
I led frontend development and designed the event-driven UI architecture with WebSocket and RxJS, a Storybook design system and UX tailored to non-technical operators.
The result was a production application running directly on the manufacturing equipment and delivered to the fixed Productronica Munich deadline.

Stack: Vue.js, TypeScript, RxJS, WebSocket, Vite, TailwindCSS, Storybook, SVG, Canvas

Senior Frontend Developer / UX/UI Designer | Konica Minolta IT Solutions Czech a.s.

2019 - 2021

A real-time video analytics system needed to turn machine-learning outputs into technical dashboards that users could understand and work with day to day.
I designed the frontend UI architecture, component system and SVG/Canvas data visualisations, connecting the technical functionality with the UX design.
The result was a consistent interface that exposed a complex analytical workflow through clear real-time dashboards.

Stack: Vue.js, JavaScript, HTML5, SCSS, SVG, Canvas

Senior Frontend Developer | COGNITO s.r.o.

2018 - 2019

Enterprise web projects required a complete frontend layer integrated with an existing Symfony/Twig backend. I implemented the frontend and introduced Vue.js where appropriate, resulting in production UI solutions integrated with the backend.

Senior Frontend Developer | INSPIRE s.r.o.

2017 - 2018

Bespoke web and CMS projects required a responsive frontend on top of an existing Nette/PHP backend. I designed and implemented the frontend architecture and UI, resulting in production web and CMS applications tailored to client requirements.

UI/UX Designer / Web Developer | VEIT Electronics s.r.o.

2016 - 2017

Web and Windows desktop applications needed product requirements translated into understandable user interfaces. I created wireframes and UX flows and contributed to WPF implementation, connecting UX design with the delivered application.

UI & Graphic Designer | iGATE s.r.o.

2014 - 2016

Products including Trackito needed a coherent interface and visual identity across mobile, web and marketing outputs. I designed the UI and product branding, resulting in a consistent product presentation across channels.

Project Manager / Web Developer | ZONER software, a.s.

2013 - 2014

The InPage CMS required product management, team coordination, customer communication and bespoke extensions at the same time. I managed the product and team and developed custom web solutions, directly connecting customer requirements with product delivery.

TECHNOLOGIES

Frontend & UI: TypeScript, JavaScript, React.js, Next.js, Vue.js, HTML5, CSS3, SCSS, Tailwind CSS, Storybook
Backend & applications: Node.js, Express, Fastify, Vike, REST APIs, Symfony/Twig, Nette/Latte, ASP.NET/Razor
Architecture & tooling: Vite, Rollup, Webpack, pnpm, monorepo, package architecture, event-driven architecture
Data, real-time & rendering: PostgreSQL, Prisma ORM, Google Cloud SQL, Firebase, WebSocket, RxJS, SVG, Canvas
Testing & delivery: Cypress, Playwright, E2E/UI testing, TypeScript strict mode, runtime validation / Type Guards, GitHub Actions, GitLab CI/CD, Docker, Vercel, Google Cloud, Tailscale
Construction & technical preparation: CAD, BIM, KROS 4, RTS, ÚRS, Excel, bills of quantities, estimating, technical preparation

CONSTRUCTION & DESIGN EXPERIENCE

Estimator / construction technical preparation | ZEMAKO, s.r.o.

2026 - present

Construction tendering and delivery preparation requires combining itemised estimates, bills of quantities, current prices and technical assessment from multiple inputs.
I prepare and check estimates in KROS 4 and ÚRS/RTS, assess earthworks, piping, drainage and other structures, coordinate supplier quotations, work with BIM platform inputs and automate recurring calculations in Excel.
The result is a consolidated set of inputs for quotations and project delivery, including price updates, variations and change work.

Stack: KROS 4, ÚRS, RTS, Excel, BIM, BIM platforms, bills of quantities, estimating and technical preparation

Building-services designer / HVAC & utilities - self-employed | design practice

2005 - 2012

Utility-network and building-services projects required capacities, routes and technologies to be coordinated across disciplines and documentation to progress through every stage to construction.
I designed sewerage, water-supply and gas networks and later coordinated ventilation and heating, preparing planning, building-permit and construction documentation including bills of quantities, RTS estimates and authority coordination.
The result was coordinated documentation ready for approval and construction; major references included Hotel JEREX in Ostrovačice and the Démos Trade production hall in Sokolnice, where I also contributed to technical supervision.

EDUCATION & AUTHORISATION

Brno Secondary Technical School of Construction - water management structures.
ČKAIT no. 1005625 - authorised building-services technician, sanitary technology specialisation; authorisation suspended.

WORK SAMPLES

nexis.monster: AI-agent workflow with validation, traceable sources and human-in-the-loop control for technical processes.
colorplayer.weela.cz: Browser-rendering experiment using WebAudio + Canvas to explore event-loop pressure, performance and memory behaviour during real-time visualisation.
portfolio.vsous.cz: Professional portfolio and additional projects.